102216280 has 32 divisors (see below), whose sum is σ = 235599840. Its totient is φ = 39888640.

The previous prime is 102216259. The next prime is 102216299. The reversal of 102216280 is 82612201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29524 + ... + 32803.

It is an arithmetic number, because the mean of its divisors is an integer number (7362495).

Almost surely, 2^102216280 is an apocalyptic number.

102216280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102216280 is an abundant number, since it is smaller than the sum of its proper divisors (133383560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102216280 is a wasteful number, since it uses less digits than its factorization.

102216280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62379 (or 62375 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 102216280 is about 10110.2067239004. The cubic root of 102216280 is about 467.5628786710.

Adding to 102216280 its reverse (82612201), we get a palindrome (184828481).

The spelling of 102216280 in words is "one hundred two million, two hundred sixteen thousand, two hundred eighty".